:root {
    --primary-color: #FFA726;
    --card-bg: rgba(255, 255, 255, 0.1);
    --text-primary: #2D2D2D;
    --transition-duration: 0.3s;
}

/* 基础布局 */
body {
    font-family: 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, #FFF3E0 0%, #FFE0B2 100%);
    color: var(--text-primary);
    line-height: 1.6;
    padding-top: 48px;
}

.city-header {
    position: fixed;
    top: 0;
    width: 100%;
    backdrop-filter: blur(10px);
    background: var(--card-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 实时天气卡片 */
.weather-card {
    margin: 16px;
    padding: 24px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 
                0 1px 3px rgba(0, 0, 0, 0.08);
}

.current-temp {
    font-size: 4rem;
    font-weight: 300;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-duration) cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

/* 空气质量指示器 */
.aqi-progress {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: conic-gradient(var(--primary-color) 45%, #EEEEEE 0);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

@supports not (backdrop-filter: blur(10px)) {
    .weather-card {
        background: rgba(255, 255, 255, 0.9);
    }
}